Lasting-pinchers



(No Model.)

F. W. WHITCHER. LASTING BINGHBRS. No. 372,246.' Patented Oct. 25, 1887.

y IQJEQL UNITED STATES PATENT OFFICE.

.FRANK W. WHITOHER, OF BOSTON, MASSACHUSETTS.

LASTlNG-PINCHERS.

SPECIFICATION forming part of Letters Patent No. 372,246, dated October 25, 1887.

Application ledMay 28, 1887. Serial No. 239,657. (No model.)

T 0 LZIZ whom, it may concern:

Be it known that I, FEANKW. WHITGHER,

of Boston, county of Suffolk,and State of Massachusetts, have invented certain new and useful Improvements in Lasting Pinchers, vof which the following is a specification, reference being had to` the drawings accompanying and forming a part hereof, in which- Figure l is a view of a pair of pinchers broken away to show my improvement. Fig. 2 is a like view showing the pinchers as now made.

Lasting-pinchers which are provided with a hammer, B,havingascrewshank adapted to be screwed into a threaded socket on the under jaw of the pinchers,a1e now constructed,so far as known to me, as shown in Fig. 2that is, the ham mer B is formed with a shoulder at a, which rests against the jaw ofthe pinchers, the screw shank projecting directly from the shoulder or top ofthe hammer. Such a hammer is liable to break when subjected to a side blow, theline of breakage being at or near to the point where the screw vshank joins the top of the hammer. Toprevent the breakage at this point and strengthen the hammer are the objects of my invention, which'consists in constructing the shank of the hammer B as shown in Fig. l-that is, by joining the hammer to its screw-shank by means of a tapering or conical portion, as shown atb. The socket to receive the shank is made with a corresponding dare at its month, so that when the screwshank d is screwed down into the socket a portion of the tapering shank b next the screw-- shank will be received into the daring mouth of the socket, thus doing away with any shoulder and giving the hammer Bsubstantial support against any side strain to which it may be subjected. The pinchers can be constructed in this manner as easily and as cheaply as in the old manner, while the strength and dnrability ofthe hammer are very much increased.

What I claim is- A pai-r of lasting-pinchers provided with a hammer, as B, having a tapering or conical shank, as b, a portion of said tapering'shank being received in `a correspondingly-shaped socket in the pinchers, for the purposes and substanlially as shown and described.

FRANK W. WHITCHER.

WM. A. MVAoLEoD, ROBERT WALLACE. 

